Part of Zebra labels. The sizes and the other how-tos for that printer start on that page.

Zebra ZD421 label size setup

Set the stock size before the first barcode

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Zebra ZD421 label size setup

Published: · 3 min read · How-to
Do this in the free app: Open https://app.mylabelmaker.com. No signup. Design the label, then print to Zebra or download PNG, PDF, or ZPL.

Zebra ZD421 label size setup is why labels cut off or skip. Measure the liner, set that width and height in the free label maker, then print one test. Do not leave Windows on Letter.

Good to know: The printer and the design must agree. A 4x6 job on 2x1 stock wastes a strip and looks like a jam.

How to set ZD421 label size

  1. Measure the label (not the core). Common ZD421 rolls are 2x1, 3x1, or 4x6.
  2. Open https://app.mylabelmaker.com and pick that size (or custom). No signup.
  3. Calibrate the ZD421 on that stock (gap vs mark).
  4. Print one test. If it is off-center, fix guides, then reprint one.

Print a configuration label

Hold the cancel/feed combo your model uses until a config label prints. Confirm the stored width matches the roll. Then keep the same size in the editor so the bitmap is not scaled.

Print to Zebra, or save a file

Print from the browser with Browser Print at the printer's DPI. If you are not on that printer today, download PNG, JPEG, SVG, PDF, or ZPL. JSON keeps the editable master.

Set the size, print one test

Wrong size is most cut-off jobs.

Open free label maker